Preheat broiler if manufacturer directs. Trim all fat from sirloin steak. Sprinkle steak with 1/2 teaspoon salt. Place steak on rack in broiling pan. With broiling pan at closest position to source of heat, broil steak 12 to 15 minutes for medium-rare or until of desired doneness, turning steak once. Remove broiling pan from oven. Spread herb mixture on top of steak. Broil steak 1 to 2 minutes longer until herb topping is golden.